Forecast Details for Boulder, WY

Recent Locations: Boulder, WY  
Overnight: Mostly clear, with a low around 44. Calm wind.
Thursday: Mostly sunny, with a high near 83. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Thursday Night: Partly cloudy, with a low around 48. West wind 5 to 10 mph becoming light and variable after midnight.
Friday: Mostly sunny, with a high near 79. Breezy, with a light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 21 mph.
Friday Night: Mostly clear, with a low around 46. Breezy, with a west northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.
Saturday: Sunny, with a high near 77. Windy, with a light and variable wind becoming west southwest 24 to 29 mph in the morning. Winds could gust as high as 40 mph.
Saturday Night: Partly cloudy, with a low around 41. Windy, with a west wind 21 to 26 mph becoming light and variable after midnight. Winds could gust as high as 37 mph.
Sunday: Mostly sunny, with a high near 73. Breezy.
Sunday Night: Mostly cloudy, with a low around 44.
Monday: A 20 percent chance of showers after noon. Partly sunny, with a high near 69. Breezy.
Monday Night: A slight chance of showers. Mostly cloudy, with a low around 33. Breezy.
Tuesday: Mostly sunny, with a high near 58.
Tuesday Night: Partly cloudy, with a low around 32.
Juneteenth: Sunny, with a high near 66.

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

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Tomorrows National Weather Map

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

North American Water Vapor Map

Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Condensation Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails

Weather Topic: What are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds